一、单项选择
1．We had ___________ wonderful time_________the party_______ other day．
A．a,on,the B．/,at,on C．a,at,the D．/,on,/
2．It's said that __________ is going to give us a lecture．
A．an American famous young B．a famous American youg
C．a famous young American D．a young famous American
3．Nearly________ of the surface of our planet is covered by water．
A．seven-ten B．seven-tenth C．seven-tenths D．seventh-ten
4．You must have waited here for a long time ,___________you?
